Saving addresses/pointers of QWidgets

Question

I'm dynamically generating QWidgets (so far only labels) so that I can change the UI on the fly. I know I can use XML files from QTCreator, but I've got my reasons not to.

Anyway, everytime I create a widget, I pass the type (label) and address to a vector. That works fine. But when I try to cast the address back to a QLabel (for example) and do '&castedQLabel' it gives me a different result.

Here is a pseudo code of what is happening:

 vector_of_Widgets.push_back({tmpString, "label", &origLabel}); 
 qDebug() << &origLabel;

//Later in code
QLabel *tmpLabel = (QLabel *)vector_of_QWidgets[number].data; //.data is the third argument ^^
qDebug() << vector_of_QWidgets[number].data;
qDebug() << &tmpLabel;

Output:

>>0x7ffc151a5518 

>>0x7ffc151a5518 
>>0x7ffc151a4ab0 

Oh yeah, also, .data is (void *).

Answer 1

tmpLabel指向您的QLabel，无需取消引用它。